CVE-2021-23988
published 2021-03-31CVE-2021-23988: Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough…
PriorityP337high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.08%
61.1th percentile
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 87.0-1 (sid) | firefox 87.0-1 (sid) |
| mozilla | firefox | < 87.0 | 87.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.16.04.2 | 87.0+build3-0ubuntu0.16.04.2 |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.18.04.2 | 87.0+build3-0ubuntu0.18.04.2 |
| mozilla | firefox | >= 0 < 87.0+build3-0ubuntu0.20.04.2 | 87.0+build3-0ubuntu0.20.04.2 |
| mozilla | firefox | >= unspecified < 87 | 87 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8HIGH
vendor_ubuntu8.1HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-jw26-3gw4-6p77: Mozilla developers reported memory safety bugs present in Firefox 86
ghsa_unreviewed·2022-05-24
CVE-2021-23988 [HIGH] CWE-119 GHSA-jw26-3gw4-6p77: Mozilla developers reported memory safety bugs present in Firefox 86
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.
OSV
firefox vulnerabilities
osv·2021-03-25·CVSS 8.1
CVE-2021-23981 [HIGH] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, or execute arbitrary code. (CVE-2021-23981, CVE-2021-23982,
CVE-2021-23983, CVE-2021-23987, CVE-2021-23988)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit this to spook a website and trick the user into providing
credentials. (CVE-2021-23984)
It was discovered that the DevTools remote debugging feature could be
enabled without an indication to the user. If a local attacker
OSV
CVE-2021-23988: Mozilla developers reported memory safety bugs present in Firefox 86
osv·2021-03-25·CVSS 8.8
CVE-2021-23988 [HIGH] CVE-2021-23988: Mozilla developers reported memory safety bugs present in Firefox 86
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2021-03-25·CVSS 8.1
CVE-2021-23987 [HIGH] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, or execute arbitrary code. (CVE-2021-23981, CVE-2021-23982,
CVE-2021-23983, CVE-2021-23987, CVE-2021-23988)
It was discovered that extensions could open popup windows with control
of the window title in some circumstances. If a user were tricked into
installing a specially crafted extension, an attacker could potentially
exploit this to spook a website and trick the user into providing
credentials. (CVE-2021-23984)
It was discovered th
Debian
CVE-2021-23988: firefox - Mozilla developers reported memory safety bugs present in Firefox 86. Some of th...
vendor_debian·2021·CVSS 8.8
CVE-2021-23988 [HIGH] CVE-2021-23988: firefox - Mozilla developers reported memory safety bugs present in Firefox 86. Some of th...
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87.
Scope: local
sid: resolved (fixed in 87.0-1)
Mozilla
Mozilla Foundation Security Advisory 2021-10: CVE-2021-23988
vendor_mozilla·CVSS 8.8
CVE-2021-23988 [HIGH] Mozilla Foundation Security Advisory 2021-10: CVE-2021-23988
Mozilla Foundation Security Advisory 2021-10
CVE: CVE-2021-23988
Product: Firefox
Impact: moderate
Fixed in: Firefox 87
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-03-31
Published